ISL84522IBZ

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The ISL84522IBZ device is an ultra low capacitance (0.35pF) automotive grade analog switch and multiplexer/demultiplexer. It is a one-to-eight (1:8) selector switch with 225 Ohms of on-resistance, giving it the flexibility to work in a range of high speed switching applications. It features a wide common-mode voltage range from -2V to 16V, making it ideal for automotive and industrial applications. The device is certified to AEC-Q100, making it automotive grade quality. In addition, the device has an internal ESD protection diode, allowing it to withstand voltage spikes up to ±8kV (HBM).

The ISL84522IBZ has a wide range of applications, including in audio switching, video distribution, signal routing, signal selection, level shifting and data switching. It can be used in both single- and dual-channel (1:16) signal switching. In addition, the device can be used in automotive applications, including powertrain control, infotainment, safety, ADAS, and body systems. The device also offers flexibility in terms of power supply, as it can operate from a single +3V to +5.5V supply, as well as dual ±2.5V to ±12V supplies, giving it a wide operating range.

The ISL84522IBZ device works on the principle of “source-following” the signal from the selected input channel. As the voltage of a selected channel is supplied to the output, the device follows the input voltage and reproduces it at the output. When the input channel is switched, the charging and discharging of the internal capacitance can cause transient phenomena or “glitches”, which need to be compensated by appropriate circuitry.

The ISL84522IBZ has several built-in features that help to reduce its effects on the output signal. These include low input/output capacitance, low charge injection during off-to-on transitions and low on-resistance. These features help to improve the signal fidelity and minimize the effects of switching transients. In addition, the device includes under-voltage lockout (UVLO) and thermal shutdown (TSD) protection to protect it from operational and environmental conditions.

The ISL84522IBZ is well-suited for a wide range of automotive and industrial analog switching and multiplexing/demultiplexing applications, and its integrated features enable it to provide reliable and consistent performances. The device is designed to meet the highest safety standards, making it suitable for use in mission-critical systems. Its low supply voltage and power consumption also makes it an ideal choice for a variety of portable and battery-operated applications.

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